Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation
Chen, X; Chu WS(储旺盛); Wu ZY(吴自玉); Chu, WS; Wang, L; Wu, ZY
刊名JOURNAL OF MOLECULAR STRUCTURE
2009
卷号920期号:1-3页码:#REF!
关键词Pt4+ The local structure XANES EXAFS
学科分类Chemistry
DOI10.1016/j.molstruc.2008.10.016
通讯作者Wu, ZY (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
文章类型Article
英文摘要The noble metal ions play an important role in many chemical reactions, but at the present time they represent also potentially new environmental contaminants. There is relatively little information available to adequately assess the potential health hazards, so that to evaluate the potential hazards and identify the necessary actions to reduce the risks associated with exposure to these metals and their compounds it is important to understand the local structure around noble metal ions. In this contribution, the local coordination around platinum (IV) ions e.g., Pt4+ in aqueous solution, has been investigated by using X-ray absorption spectroscopy (XAS). X-ray absorption near-edge spectra (XANES) of both (PtCl6](2-) and [PtCl4(OH)(2)](2-) in an aqueous solution have been calculated using FEFF8.2 and both are characterized by an octahedral geometry. From these calculations, we may also assign a characteristic post-edge feature to a contribution of Cl cl-states. From the EXAFS analysis we also determined the corresponding Pt bond distances, e.g., 2.33 angstrom for the Pt-Cl distance and 2.03 angstrom for the Pt-O distance in these aqueous solutions. The same analysis provides evidence that the peaks in the Fourier transform at about 4.0 angstrom are due to multiple scattering collinear Cl-Pt-Cl contributions. (C) 2008 Elsevier B.V. All rights reserved.
类目[WOS]Chemistry, Physical
收录类别SCI
WOS记录号WOS:000264251400007
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225680
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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Chen, X,Chu WS,Wu ZY,et al. Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation[J]. JOURNAL OF MOLECULAR STRUCTURE,2009,920(1-3):#REF!.
APA Chen, X,储旺盛,吴自玉,Chu, WS,Wang, L,&Wu, ZY.(2009).Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation.JOURNAL OF MOLECULAR STRUCTURE,920(1-3),#REF!.
MLA Chen, X,et al."Geometry of Pt(IV) in H2PtCl6 aqueous solution: An X-ray absorption spectroscopic investigation".JOURNAL OF MOLECULAR STRUCTURE 920.1-3(2009):#REF!.
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